@MaxB. 331d

It’s likely collecting there because there isn’t enough flow in that spot. You could: try moving the flow nozzle to hit this spot too Get a Wavemaker for more flow Move some piece of rock that may be blocking the flow

@Usarmy227 331d

Grab a sand sifter or a diamond watchmen goby. Keeps my sand clean. He can be an ass though.

@luke45 331d

Get a turkey baster it works great suck up some water in it then stick it in to the sand and squeeze repeat until clean

@ShrimpnReefDude 330d

Looks like diatoms to me. Nothing too concerning. How old is the tank? Is it possible to meet up with another local reefer with a mature tank to see if you could get a handful of sand or biomedia from their sump? The extra diversity of beneficial bacteria should help overcome this. Another good option would be AquaForest Life Source treatments.

@Jaz187 321d

Tanks over a year old

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@AnthonyStsnislawcyk63773 320d

get some nassarious snails i dont know how much flow you have but increase cleanup crew for sand bed